Electricity: conductors and insulators – Underground
Patent
1997-07-18
2000-02-29
Ramirez, Nestor
Electricity: conductors and insulators
Underground
174 3738, H04G 100
Patent
active
060311800
ABSTRACT:
A below ground enclosure for retaining cable and cable components, wherein the below ground enclosure is pressurizable and the components may be mounted on a vertically actuated rack to be movable between a retracted position inside the enclosure and an extended position above ground. A cooperating lock and valving system is employed to permit pressurization of the enclosure from an internal pressurized gas source upon sealing and locking of the enclosure, and for venting the enclosure upon initiation of the unlocking procedure.
REFERENCES:
patent: 3660613 (1972-05-01), Mullin et al.
patent: 3928713 (1975-12-01), Davis
patent: 3991288 (1976-11-01), George et al.
patent: 5189723 (1993-02-01), Johnson et al.
patent: 5574254 (1996-11-01), Mori et al.
patent: 5722204 (1998-03-01), Stieb et al.
Mulford Robert W
Schilling Robert J
Vazquez Julio
Arco Communications, Inc.
Ramirez Nestor
Waks Joseph
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